Gibb's wife Dwina, has reportedly revealed that the 62-year-old singer has been nodding his head and communicating with his family who have held a bedside vigil over the course of the week.

Gibb started to show signs of life after his brother and fellow Bee Gee, Barry Gibb, started singing to him, accompanied by music played by Robin Gibb's children.

He's moving his head and nodding. When we're asking questions he's responding to them. I can't believe it, his wife said speaking outside the hospital on Saturday, the sun newspaper reported.

The ECG scanner showed that Robin was responding to the music being played to him, Dwina revealed. We're very pleased. We think he might even talk once the tubes come out, she added.

The Daily Mirror claims that Robin even wept when Roy Orbinson's hit Crying was played to him.

There are hopeful signs of recovery, he is not out of the woods yet, a source told the Sun Newspaper.

The music legend, who suffers from colon and liver cancer, fell into a coma last week while being treated for pneumonia.

His spirit has been shattered since the pneumonia and he has gone visibly downhill. Before he slipped into a coma he was struggling to get out of bed without a wheelchair, a family friend said.

Before falling ill, Gibb was supposed to make an appearance meant to perform at the premiere of Titanic Requiem on Tuesday, which he composed with Robin-John. His wife has been finding strength in the past week through listening to his latest work Don't Cry Alone, according to the Daily Mail.

Gibb was first diagnosed with cancer 18 months ago, when he was undergoing bowel surgery. The doctors found a tumor and diagnosed him with cancer of the colon and later with cancer of the liver.

His friends revealed that the 62-year-old had a bucket list, which he kept by his bedside at the hospital. One of Gibb's main wishes before he dies is to set up a children's charity involving music, his friend told the Daily Mirror.

Gibb was born in England in 1949. He founded the Bee Gee's with his twin brother Maurice and moved to Manchester to start performing. The Bee Gees released their first record in 1963. The brothers rose to fame for their hit records Jive Talkin, Stayin' Alive and Night Fever.

Robin Gibb's most recent performance was sin February, when he took to the stage to support an injured serviceman and women at the Coming Home charity concert in London.